I didn't mean that all logically possible universes would exist, but
rather that a full spectrum of universes rather like our own would be
created, with all possible variations on fundamental physical parameters,
like the dimensionality of space and the strengths of the various forces.
So this would not include universes where pink elephants materialize out
of nowhere.
However in the light of Nick's interpretation, maybe my idea is not
so attractive. I thought Wei's suggestion (as I understood it) was
improbable that maybe just one universe exists which just happens to
have physical properties that allow the formation of life. It seemed
too arbitrary. I tried to suggest a simpler model in which all possible
variations would exist. But I was still constraining the variations to
be those which are not so terribly different from our own. Fundamentally
maybe that is really just as limited, compared with the alternative that
Nick is suggesting.
Hal